Switches, Relays & Keypads


Small relays and opto coupters have filtered switching

13 August 2003 Switches, Relays & Keypads

The pluggable and 6,2 mm small PLC-interface relay and opto coupler product range from Phoenix Contact will be expanded with the PLC-...SO46 line. Interface elements will be implemented where conventional relays and opto couplers cannot correctly shut off, because of noise voltage interference (caused by the control system) or a leakage of current.

Effective filter switching reduces unwanted disturbances such as initiator leakage currents or noise voltage interference arising along longer control cables. This also improves the switching behaviour.

The modules are designed for use with 120 V a.c. and 230 V a.c. power supplies and are available either using screw or spring cage technology. In particular, the PLC relay and opto-coupler range features savings on space, wiring and cost.

For more information contact Rob MacKenzie, Phoenix Contact, 011 793 7121, [email protected]



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